Supporting column of insulation unit for semiconductor manufacturing apparatus



FIG. 1 is a front, top and right side perspective view of a supportingcolumn of insulation unit for semiconductor manufacturing apparatusshowing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a cross-sectional view take along line 8-8 in FIG. 2.

The dot-dash broken lines FIG. 2 are for reference purposes only; thebroken lines form no part of the claimed design.

CLAIM The ornamental design for a supporting column of insulation unitfor semiconductor manufacturing apparatus, as shown (and described).